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Brompton designed the all-new Electric G Line bike and e-system as one.
Brompton designed the all-new Electric G Line bike and e-system as one.
Brompton

Brompton Electric G Line with Roller Frame 4 Speed Folding Bike 2025 in Adventure Orange

£3,499.00
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Brompton Electric G Line with Roller Frame 4 Speed Folding Bike 2026 in Traildust White
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With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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Hassle free returns

In the unlikely event that you are not satisfied with your purchase please feel free to return your items within 90 days of the purchase date for a full exchange or refund. Any item (excluding food, underwear or e-gift vouchers) can be returned to us for any reason within 90 days, provided that the item has not been used or fitted and is returned in its original packaging with valid proof of purchase.

It is recommended that you use a recorded delivery service or return to a store to ensure your items are received by us. We cannot assume responsibility for items that are lost in transit back to us.

Returning an item

Online or in-store purchases can be returned to any of our 12 stores free of charge or can be returned by post or courier at your cost after completing the online returns form below. If you are returning an item due to a fault, we will refund your postage costs.

Bikes & Bulky items

If you wish to return a bike or bulky item to us, please keep the box it arrived in and let us know by contacting our support team via our online webchat, email or by phone (020 45063856) and we will help arrange a collection.

Non Bike - Customer Returns Form

If you wish to return or exchange an item, please fill out the form below following the steps inside. Returns can be processed quicker if all required information is provided.




Terms & Conditions

Items must be returned in their original packaging and unused. Refunds will be issued once the product(s) have been received and inspected.

Click & Collect customers can buy with confidence knowing that they can review the item before deciding whether it is right for you before leaving the store. Should you decide it's not right for you, it can be conveniently exchanged or refunded straight away, or you still have up to 90 days to return it if you are still unsure.

Please note:
1. If the items we have sent you are faulty, damaged or not as we described, we will cover the cost of collection and the delivery of the correct item.

2. If we have delivered the correct bike but upon inspection, you decide the bike is not the one for you, we will charge you £50 for collection (£100 from Northern Ireland). If you do not have the original box in usable condition, we will charge you an additional £15 to provide one.

Refunds will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase.

We are unable to offer a refund without a valid proof of purchase.

Brompton Electric G Line with Roller Frame 4 Speed Folding Bike 2025 in Adventure Orange

Season:2025Sale

Brand:Brompton

Code:ELE GLINE4 ADVORANGE

*Please Note: Full specification will be added when available. Images are representative and may display alternate specifications to that supplied.*

Test rides will be available from our Notting Hill branch. Contact the store for further details.

Expertly engineered to go where others can’t. G Line is the first ever Brompton with the ride feel of a full-size bike. Brand-new geometry, 20” wheels, game-changing comfort and capability. All holistically designed around the fold that made us famous. Ride it, fold it, store it anywhere. G Line takes you there.

Brompton designed the all-new Electric G Line bike and e-system as one. Every element is meticulously engineered from scratch to work together in the city and beyond. From brilliant on and off-road handling to easy charging and storing in small places, everything feels seamless with this bike. Stay ahead with over-the-air updates and seamless integration with Brompton's bike app for your smartphone—designed to elevate your ride to new heights.

The all-new one-bike solution for the city and beyond. Big on ride feel. Compact in size. You can ride G Line anywhere and take it everywhere. Happily delivering on all sorts of surfaces. Confident in all conditions. Comfortable hour after hour. G Line is expertly engineered to give you everything you need for the rough, the smooth and the beautiful.

Happily delivering on all sorts of surfaces. Confident in all conditions. Comfortable hour after hour. G Line is expertly engineered to give you everything you need for the rough, the smooth and the beautiful. You can run a rack, mudguards, and bags, add water bottles, and even store your toolkit inside the frame. And with the original Brompton fold, the ever-ready G Line transforms into a compact, locked package in under 20 seconds. Goes on trains. Travels in car boots. Stores in small spaces (including one-person tents).

In a world full of possibilities, G Line is your one-bike route to everywhere.

Key Features & Benefits:

  • Folded Size:Goes on trains. Travels in car boots. Stores in small spaces (including one-person tents).
  • Steel Frame:Built tough, with game-changing comfort.
  • Brompton e-system:Robust rear motor and a cutting-edge battery, rigorously tested for unmatched reliability and safety.

Full Specification:

  • Main Frame:Steel, hand brazed in London, Metallic Texturized finish
  • Rear Frame:Steel
  • Motor:Brompton rear hub motor
  • Battery:345-wh with LED display. 5V 1.5A USB port to charge portable devices.
  • Range:20-45 miles depending on terrain and rider weight
  • Charger:2A UK charger - 4 hour charge time
  • Fork:Aluminium fork with mounting bosses
  • Number of Gears:4
  • Gear Shifters:Microshift 4-speed
  • Chainset:TBC
  • Chainrings:50T
  • Hinge:Anti-rotation hinges
  • Rear Cassette:4-speed Brompton (163%)
  • Rear Derailleur:Brompton 4-speed
  • Bottom Bracket:TBC
  • Pedals:Brompton Wide Platform with quick-release left hand pedal
  • Front Wheel:20" Disc, tubeless rim tape installed
  • Rear Wheel:20" Disc, tubeless rim tape installed
  • Front Tyre:Schwalbe G-One Allround 20" x 54mm (54-406) (tubeless ready)
  • Rear Tyre:Schwalbe G-One Allround 20" x 54mm (54-406) (tubeless ready)
  • Brakes:Tektro Hydraulic Disc brakes with 140mm Front / 160mm Rear
  • Handlebars:Brompton
  • Handlebar Grips:Brompton Ergonomic
  • Headset:Brompton headset
  • Stem:3 types fixed to size, with water bottle bosses
  • Saddle:Brompton Standard Wide
  • Seatpost:Standard Seatpost on Small, Extended Seatpost on Medium, Telescopic on Large, Gloss Black
  • Accessories:Large diameter front carrier block adaptor for all types of Brompton luggage, Rear Roller Frame rack, mudguards, AVY Integrated lighting, G Line essential battery bag
  • Folded Size:From: 28.3" / 72cm (D), 26.2" / 67cm (H), 16" / 41cm (W)
  • Weight:From 16.1kg excluding battery
Manufacturers reserve the right to change specifications without notice based on availability at the point of assembly.




SmallMediumLarge
Rider Height (cm)152 - 168168-183183-198
Rider Height5'0" - 5'6"5'6" - 6'0"6'0" - 6'6"
Stack (mm)677687697
Reach (mm)477483504
Seatpoststandardextendedtelescopic


FAQ

What terrain can I ride G Line on?

It’s the most capable Brompton yet, with the ability to deliver on all sorts of surfaces, including: gravel paths, tow paths, asphalt and well-maintained off-road routes. With the feel of a full-size bike.

How does G Line fold?

With the original Brompton fold, the ever-ready G Line transforms into a compact, locked package in under 20 seconds.

Does G Line luggage fit on my C, P, T Line Front Carrier Block?

Yes, all non-electric Brompton bags use the same mounting system on the front of the bike. There is a unique luggage range for Electric G Line that will be available at launch. Please note that Electric C and P Line luggage will not be compatible with the new Front Carrier Block.

How many gears does G Line have?

The G Line has 8 gears with a 307% gear ratio/range. It has a Shimano Alfine 8-speed hub gear. The Electric G Line has the Brompton 4-speed gearing system with a 160% ratio/range.



To go tubeless, you must buy valves and sealant (sold separately)

Warranty Information for Brompton:

All new Brompton bicycles registered with Brompton are covered by a 7-year unlimited mileage warranty against manufacturing and material defects for the main frame components, commencing from the date of sale.
All Electric parts on the Electric P Line and Electric C Line are covered by a 2-year warranty. 3 years if you register your bike.
Other non-wearing parts on the bicycle (e.g. crank arms, brake calipers, mudguards, etc.) and other parts and accessories are covered by a 2-year warranty against manufacturing and material defects.
Bicycles not registered are subject to a 2-year warranty on the mainframe components, commencing from the date of sale.
For full warranty policy please visit brompton.com

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